* {
    margin: 0;
    padding: 0;
}

body {
    position: fixed;
    width: 100%;
    height: 100%!important;
    overflow: hidden;
    font-family: "微软雅黑";
}

body #upload {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: 100%;
    .upBtn {
        position: absolute;
        top: 10%;
        left: 0;
        right: 0;
        margin: 0 auto;
        width: 30%;
        background: skyblue;
        border: 0.06rem solid #fff;
        border-radius: 0.5rem;
        font-size: 0.5rem;
        text-align: center;
        height: 0.9rem;
        line-height: 0.9rem;
        #upContent {
            width: 100%;
            height: 100%;
            display: inline-block; 
            // visibility: hidden;
            position: absolute;
            top: 14%;
            left: 20%;
            right: 0;
            margin: 0 auto;
            z-index: 1000;
        }
    }
}